Car-journal bearing



(No Model.) a

W. R. 8: J. R. BOWKER. GAR JOURNAL BEARING.

N0. 591,807. Patented Oct: 19,1897.

Wflgessea. IEJX/E'QIIEIFS! W.Wo% Wm 0447i "5 co. PHOTO-LIVHQ. wasnmumn.n cy UNITED STATES PATENT OFFICE.

IVILLIAM RUSHTON BOWKER AND JOHN RUSHTON BOIVKER, OF \VALTHAM,

' MASSACHUSETTS.

CAR-JOURNAL BEARING.

SPECIFICATION forming part of Letters Patent No. 591,807, dated October19, 1897.

Application filed November 4, 1896. Serial No. 611,087. (No model.)

To all whom it may concern.-

Be it known that we, VILLIAM RUSH'ION Bowman and JOHN RUsHToN BOWKER,residents of lValtham, Middlesex county, Massachusetts, have inventedcertain new and useful Improvements in Lubricators for J ournals of Carand Locomotive Axles, of which the following specification contains afull, clear, and exact description, reference being had to theaccompanying drawings, forming a part thereof, and in which- Figure 1 isa longitudinal vertical section of the improved lubricator and of thejour na l-box containing it. Fig. 2 is a transverse vertical section online 2 2 of Fig. 1, and Fig. 3 is a view similar to Fig. 1 of a modifiedform of lubricator.

The invention relates to that class of lubricators which are providedwith a pump for supplying the journal with oil from the bot tom of thebox.

The object of the invention is to render the piston of the lubricatoroperative, wholly independent of the journal, by allowing it freemovement in the barrel or receiving chamber or chambers, so that thepiston will be moved back and forth by the jolting or lateral movementof the car; also,to simplify the lubricator, so that no valves or partsother than the piston and its barrel or chamber will be required; also,to render the piston sensitive to such jerky or jolting movements bymounting it upon wheels or rollers travel ing on the bottom of the box.

The invention consists primarily, therefore, in one or more barrels orpiston-chambers provided with an outlet nozzle or nozzles to dischargethe oil upon the j ournal,and a piston freely mounted in said barrel orbarrels, so as to be moved back and forth by the jolting or lateralmovements of the car, and the Whole being adapted for location in ajournal-box independent of the journal.

The invention also consists in the construction and combinationshereinafter described, and specifically pointed out in the claims.

A represents the journal-box, the bottom portion of which forms theoil-reservoir, and B is the journal mounted in said box. These parts maybe of any approved construction.

The lubricator is mounted in the bottom of the box and comprises twopiston-barrels E E, mounted at opposite ends of the box-bottom withtheir open ends facing each other. In Fig. 1 both of these barrelsorchambers are provided with discharge-nozzles H H and lateralinlet-openings I I, for the free entrance of the oil contained in thebox, while in Fig. 3 but a single discharge-nozzle is provided,the otherbarrel or chamber E simply serving as a piston-guide. In Fig. 3 thenozzle is in the form of a pipe overlying both pistonbarrels E E,extending practically from end to end of the box and havingdischarge-apertures in its upper side, which lies adjacent to the underside of the journal B. These piston barrels or chambers are oblong incross-section and rest fiat upon the bottom of the box.

The piston F is in the form of a plain oblong block and extends at itsends into the two piston-chambers E E, and fits sufficiently snug toexpel the oil through the nozzle or nozzles, but is free to bereciprocated by the jolting or lateral vibration of the car. When thepiston is moved in one direction, one inlet-port I will be opened forthe free entrance of the oil, and theoil will be forced out of theopposite chamber E.

G G are rollers or wheels pivoted at opposite sides of the pistonbetween the barrels or chambersE E, and running on the bottom of thebox' A. 7

As the inlet-ports I I open into the box A below the level of the oiland the piston ends open and close them it is obvious that no valves arerequired.

The whole lubricating mechanism may be readily inserted or removed fromthe box for cleaning or repair.

What we claim is 1. A lubricator for j ournal-boxes, comprising a barrelor casing to rest in the bottom of the box and having an inlet and asuitable discharge-nozzle to direct the oil upon the journal, and afreely-movablepiston for'said barrel or casing, operated solely by thevibra tion of the car and independent of the journal, substantially asdescribed. v

2. A lubricator for journal-boxes comprising piston-barrels adapted torest at opposite ends of the bottom of the j ournal-box, and one I orboth provided with an inlet and a dischargenozzle to supply oil to thejournal, and a piston working freely at its ends in said two barrelspast said inlet or inlets and operated solely by the vibrations of thecar, substantially as described.

3. A lubricator for journal-boxes comprising the oblong piston barrelsor chambers to rest on the bottom of a journal-box'at opposite endsthereof and provided with an inlet and a discharge-nozzle to direct theoil up to the journal, and a piston in the form of an oblong block,working freely in said two barrels or chambers and operated by thevibrations of the car, substantially as described.

4:. A lubricator for journal-boxes, comprising the two piston-barrels torest on the bottom of a j ournal-box and having an inlet and a nozzle todischarge the oil upon the journal, and the piston working in said twobarrels or chambers, and provided therebetween with rollers or wheelsrunning on the bottom of the box, substantially as described.

5. The combination with the box and the journal, of a lubrioatorcomprising a pistonchamber in the bottom of the box, having an inlet anda nozzle to discharge upon the overlying journal, and a freely-movablepiston working in the said chamber past said inlet and operated by thevibrations of the car, substantially as described.

6. The combination with the box and jour:

nal, of a piston barrel or chamber in the bot- 7 YVILLIAM RUSHTONBOVVKER. JOHN RUSHTON BOWKER.

\Vitnesses:

I. E. WILLIAMS, WILLIAM HILTON.

